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| US3939319 | 31 Ene 1974 | 17 Feb 1976 | Tokyo Shibaura Electric Co., Ltd. | High-frequency heating device for variably controlling a high frequency output in a continuous or stepwise manner |
| US3944878 | 1 Nov 1974 | 16 Mar 1976 | | Variable brightness light display apparatus |
| US4001537 | 24 Jul 1975 | 4 Ene 1977 | Litton Systems, Inc. | Power controller for microwave magnetron |
| US4057735 | 2 Dic 1975 | 8 Nov 1977 | | Christmas tree lighting control |
| US4220910 | 30 Dic 1977 | 2 Sep 1980 | Taisan Industrial Co., Ltd. | Raising-pressure delay type electromagnetic pumps |
| US5128595 | 23 Oct 1990 | 7 Jul 1992 | Minami International Corporation | Fader for miniature lights |
| US5345147 | 17 Feb 1993 | 6 Sep 1994 | | Staged selection type Christmas light controller circuit |
| US5892296 | 12 Nov 1996 | 6 Abr 1999 | Electronic Art Gallery Elektronische Werbemittel GmbH
Loupi S.A.R.L. | Circuit for cyclically driving several loads |
